Overwatch Extra on X: NEW Legendary Atlantic All-Star Tracer

I have discovered that on the PTR all of the All-Stars skins are no longer categorized as 'Legacy' so now I am pretty confident that they will be coming back soon.

Overwatch] Mercy Skins (All + Blues, OWL, Atlantic 2019) Tier List (Community Rankings) - TierMaker

Δ — “Atlantic All-Star Tracer +Pacific All-Star

11 rarest skins in Overwatch 2 - Dot Esports

Overwatch 2: What Are Endorsements & What Do They Mean? - Gameranx

Official PlayStation Magazine - UK Edition Xmas 2019 (Digital)

Overwatch / Overwatch 2 Accounts - Buy Sell Trade

Is The 2018 Atlantic All-Stars Skin Worth It? Overwatch 2 Skin Showcase & Review! (Tracer)

ArtStation - Amir Alizadeh

The Ultimate Overwatch Mercy guide - Dexerto

Overwatch 2 Skins - Overwatch 2 Guide - IGN